From top to bottom: GLS periodograms of RVs, S index, and Hα, zoomed around the frequencies of interest. The dotted blue and cyan lines indicate the frequencies corresponding to orbital periods of the candidate planets at 13.7 d and 2.65 d, respectively, while the dotted red and magenta lines show the frequencies corresponding to the activity periods at 30.7 d and 42.5 d, respectively. These frequencies and periods are marked with dots in the same color code in the upper RV panel.